Reaction profile

The FDA adverse-event record for closure, abnormal

3,255 FDA adverse-event reports reference closure, abnormal (VeDDRA 99811). See the species, breeds, and drugs most associated with it below.

3,255
reports citing this reaction
0.1%
death-coded share
Unknown
most-affected species
Fluralaner Spot-On Solution
most-associated drug
Verify with FDA CVM →
3,255
Total Reports
3
Deaths
0.1%
Death Rate

Species Most Affected

Unknown 3,119
Human 97
Dog 19
Cat 18
Cattle 1
Horse 1

Breeds Most Affected

Unknown 3,218
Domestic Shorthair 7
Domestic Longhair 5
Dog (unknown) 4
Cat (unknown) 3
Crossbred Canine/dog 2
Retriever - Labrador 2
Domestic Mediumhair 2
Shih Tzu 2
Corgi - Welsh Pembroke 1

Associated Drugs

Fluralaner Spot-On Solution 511
Ivermectin + Pyrantel As Pamoate Salt 396
Amoxicillin Trihydrate;Clavulanate Potassium ( K-Clavulanate) 288
Moxidectin 212
Selamectin;Sarolaner 142
Selamectin 138
Doramectin 84
Fluralaner/Moxidectin Spot-On 80
Carprofen 70
Ceftiofur Hydrochloride 68
Meloxicam 41
Insulin Injectable Vial 40
Amoxicillin (As Trihydrate); Clavulanate Potassium ( K-Clavulanate) 39
Dexamethasone + Neomycin Sulfate + Thiabendazole 38
Pimobendan 36
Cyclosporin Ointment 35
Fluralaner 13.64% 12-Week Chew 35
Cefovecin 33
Imidacloprid + Moxidectin 33
Afoxolaner 31

Closure, Abnormal Reaction Insights

3,255 reports name Closure, Abnormal; 3 recorded a death outcome (0.1% of reported events, not a population-level mortality rate). VeDDRA code: 99811.

By species: Unknown (3,119 reports), Human (97 reports), Dog (19 reports). By breed: Unknown (3,218), Domestic Shorthair (7), Domestic Longhair (5).

Most co-reported drugs: Fluralaner Spot-On Solution (511 reports), Ivermectin + Pyrantel As Pamoate Salt (396 reports), Amoxicillin Trihydrate;Clavulanate Potassium ( K-Clavulanate) (288 reports), Moxidectin (212 reports).

Read these counts as reporting volume, not risk: per our methodology, co-reporting reflects temporal association captured in voluntary submissions, not proof that a drug caused this reaction. A widely-prescribed drug will rack up more raw co-reports at an identical true rate than a rarely-used one, so compare within similar-exposure products.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.